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Adsorber Particles with Magnetically‐Supported Improved Electrochemical Conversion Behavior for Waste Water Treatment Processes

Schneider, Michael; Tschöpe, André; Hanselmann, Doris; Ballweg, Thomas; Gellermann, Carsten; Franzreb, Matthias; Mandel, Karl

Micron‐sized supraparticles, consisting of a plurality of discrete nano‐ and microscale functional units, are assembled and fused by means of a droplet extrusion process. By combining nano magnetite, activated carbon, and conductive carbon with a polymeric binder matrix, particles are obtained which unite good magnetic properties, electrical conductivity, and adsorber activity through the high accessible surface area of the incorporated activated carbon of about 570 m2 g−1, thereby enabling a new approach toward sustainable water treatment processes. Due to the interplay of the components, it is possible to adsorb target substances, dissolved in the water which is demonstrated by the adsorption of the model dye methylene blue. A very fast adsorption kinetic and an adsorption capacity of about 400 mg g−1 is determined. By using the developed composite particles, it is also possible to electrochemically alter substances flowing through a magnetically‐stabilized fluidized‐bed reactor by electrochemically charging/discharging, significantly supported by the magnetic field enabling alternatingly optimum mobility/adsorption phases with contact/charging intervals. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000105499
Veröffentlicht am 16.07.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Funktionelle Grenzflächen (IFG)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 0934-0866, 1521-4117
KITopen-ID: 1000105499
HGF-Programm 47.02.06 (POF III, LK 01)
Zellpopul.auf Biofunk.Oberflächen IFG
Erschienen in AgBioForum
Band 37
Heft 2
Seiten Art. Nr.: 1900487
Vorab online veröffentlicht am 29.01.2020
Nachgewiesen in Web of Science
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